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You might not think engineers are brave.....But it took balls of steel to make the first bearings.
You might not think engineers are brave.....But it took balls of steel to make the first bearings.
40A21H-SB Type A Plate Sprocket for #40 Roller Chain - 21 Tooth - 5/8" Stock Bore

40A21H-SB Type A Plate Sprocket for #40 Roller Chain - 21 Tooth - 5/8" Stock Bore

$19.33
SKU 40A21H-SB
Quantity Discounts

40A21H - SB  (5/8)" Bore

Heat Treated Type A PLATE Sprocket

for #40 Roller Chain

21 Tooth 

Outside Diameter = 3.62"

Pitch Diameter = 3.355"

Free shipping in the USA!